<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    [v-cloak] {
      display: none;
    }
  </style>
</head>

<body>
  <div id="app">
    <!-- 两秒后才会渲染页面 -->
    <h3 v-cloak>{{message}}</h3>
  </div>
  <script src="../vue.js"></script>
  <script>
    setTimeout(function () {
      const vue = new Vue({
        el: '#app',
        data: {
          message: "你好呀，李银河"
        }
      })
    }, 2000)
  </script>
</body>

</html>